For me, binge watching a show means watching nothing but that for 4 or 5 hours straight. Waiting a few days and watching more starting from where someone else left off. I have binge watched Shameless most recently, but have probably only seen half of the nine seasons.
I've been watching a lot of Grey's Anatomy lately. I don't exclusively watch it, but I watch a few episodes at a time. I really like the medical dramas.
I was laid up with a messed up back so I had a lot of free time. I'll have to check out Shameless, never watched it. We used to watch ER back in the day. My wife loves the show, The Resident.